Automobile-radiator-cooling means.



C. E. W. SPEISER. AUTOMOBILE RADIATOR COOLING MEANS.

APPLICATION FILED MAY 3|. Hill.

1 ,Q?8 396 Patented Sept. 10, 1918.

2 SHEETSSHEET 1.

0/? 7/745, a 7 p 6/ J %45/ /V/ 4 2 I l 7 1 g; M Mza /3 v INVENTOR Car]E. W 57995567 WITNESSES wan/Maia BY ATTORN EY C. E. W. SPEISER.

AUTOMOBILE RADIATOR COOLING MEANS.

APPLICATION FILED WAY 3|, I917.

Patented Sept. 10, 1918.

2 SHEETS-SHEET 2.

CWQTZZ Spez'ser WlTNESSES ATTORN EY WNW- CARL E. W. SPEISER, 0F GREENCASTLE, MISSOURI.

AUTOMOBILE-RADIATOR-COOLING MEANS.

Application filed May 31, 1917.

To all whom it may concern:

Be it known that I, CARL E. W. SPEISER, a citizen of the United States,residing at Green Castle, in the county of Sullivan and State ofMissouri, have invented certain new and useful Improvements inAutomobile- Radiator-Cooling Means, of which the following is aspecification.

This invention relates to automobile radiator cooling means, and moreparticularly to a radiator fan adapted to be mounted closely adjacentthe inner face of a radiator so as to cool the same by directing an aircurrent through the radiator.

One of the main objects of the invention is to provide a fan for coolingan automobile radiator which is so constructed as to be quickly andeasily adjusted to vary the pitch of the fan blades so as to control thefiow of air through the radiator thus permitting accurate control of thecooling of the radiator. A further object is to provide a fan the bladesof which are pivotally mounted so as to be rockable for the purpose ofvarying their pitch, simple and efficient means being provided forquickly and easily rocking the blades about their pivotal axes andsecuring the same in rocked adjustment. A still further object is toprovide simple and eflicient means for adjusting the fan blades in themanner stated and for securing the same in adjustment. Further objectswill appear from the detailed description.

In the drawings Figure 1 is a fragmentary side view of the front portionof an automobile with a fan constructed in accordance with my inventionapplied, partly broken away and sectioned to show details ofconstruction,

Fig. 2 is a top plan view of the fan and the supporting bracket thereforpartly broken away.

Fig. 3 is a front view of the fan,

Fig. 4 is a section taken on line 44; of

Fig. 3,

Fig. 5 is a detail of the adjusting plate, and

Fig. 6 is a section taken on line 6-6 of Fig. 5.

Fig. 7 is a section taken substantially on line 7-7 of Fig. 6.

A supporting bracket 1 is securely bolted to the engine 2 at the frontthereof. This bracket is provided with an integral forwardl extendingbearing sleeve 3 formed at its inner end with an annular shoulder 4Specification of Letters Patent.

Patented Sept. 10, 1918.

Serial No. 171,911.

Two upwardly and rearwardly inclined arms 5 are formed at the inner endof the bearing sleeve and serve to pivotally support an operating lever6 which is mounted at its approximate center on a rod 7 secured in theupper end of arms 5 and passed through the lever.

Lever 6 is provided at its upper end with a fork 8 in which is pivotallysecured the forward end of an operating rod 9 the inner end of which isconnected by a universal joint 10 to the forward end of a cylindricalmember 11 slidably mounted in collar 12 carried by an upright 13 whichis rigidly secured to a base board 14 closely adjacent and at a rightangle to the instrument board 15 of the automobile A. Member 11 isprovided in its upper face with an axially extending groove or key way16 which receives a key 17 fixedly secured in the collar 12. By thismeans, member 11 is free to move axially through collar 12 but issecured against rotary movement. An operating rod 18 is seated in anaxial bore in member 11 and is provided with a radially extending stud19 which is operative in a helical slot 20 formed in member 11. Byrotating rod 18 axial movement will be imparted to member 11, thedirection of this movement depending upon the direction of rotation ofthe rod. This movement will be transmitted by rod 9 to lever 6 thusrocking the lever on its pivotal axis.

Rod 18 is extended so as to project beyond the inner face of instrumentboard 15, and an operating crank or handle 21 is secured on the innerend of this rod. This handle is operative over the face of anapproximately semi-circular adjusting plate 22 which is provided with aseries of equally spaced adjusting points 23 which are dis posedconcentric with rod 18, these points projecting beyond the face of plate22 so as to engage the under face of handle 21 so as to grip the samefrictionally and thus lock the handle in adjustment, the handle having acertain amount of resiliency for this purpose. Each of the points 23 isgiven a number, these numbers designating the amount of rotation whichhas been imparted to the operating rod 18 when the handle 21 is set on agiven point. To prevent looseness or play, the operating rod 18 isprovided a short distance from the inner face of instrument board 15,with a collar 24 secured thereto. An expansion coil spring 25 isconfined between this collar and a flanged bearing ring 26 secured tothe inner face of the instrument board and acting as a hearing memberfor rod 18. This spring acts as a cushioning element and serves to holdthe finger 19 of rod 18 in contact with the outer wall of slot 20 inmember 11 thus permitting adjustment of the fan blades in a manner to bedescribed.

An adjusting shaft 27 is slidably mounted in bearing sleeve 3. Thisshaft is of such length as to project forward of the fan hub 28 which isrotatably mounted on the bearing sleeve adjacent the forward endthereof. The fan hub is extended inward and provided with spacedperipheral flanges 29 and 30 to form a pulley 31 about which is passedthe fan belt 32. The inner end of the fan pulley 31 is provided with aninner annular recess which receives the annular shoulder 4 at the innerend of bearing sleeve 3. Axial movement of the fan hub rearwardly of thebearing sleeve is thus positively prevented. The forward end of bearingsleeve 3 is threaded to receive a securing nut 32, between which and theouter or front face of fan hub 28 is interposed a bearing washer 33. Bythis means, the fan hub and the belt pulley integral therewith aremounted on the bearing sleeve for free rotation but are effectuallysecured against axial movement thereon. Adjusting shaft 27 is providedon its outer end with an integral disk head 34. Head 34 is provided witha central annular groove which cooperates with a similar groove formedin the inner face of adjusting ring 35 mounted concentric with the headto provide a race way for the hearing balls 36 interposed between thehead and ring. By this means, ring 35 is mounted on head 34 so as tohave independent rotary motion, but is movable with the head axially ofthe fan hub. For adjusting the shaft 27 so as to move head 34 and ring35 toward and away from the fan hub, the adjusting lever 6 is providedat its lower end with a fork 37 which straddles the inner end portion ofshaft 27 being connected thereto by a .pin 38 secured through the shaftand extending through slots 39 formed at the lower ends of the arms offork 37. By rocking lever 6 in the desired direction shaft 27 may bemoved either inward or outward through the bearing sleeve 3.

A rim 40 is mounted concentric with fan hub 28. A plurality of equallyspaced and radially disposed fan blade-supporting rods 41 are pivotallymounted at their inner ends 1n the fan hub 28. These rods are reduced attheir outer ends to form bearing fingers 42 which are pivotally mountedin the rim 40. By this means, the fan blade supporting rods 41 arepivotally mounted so as to be rockable about their pivotal axes. A fanblade 43 is secured to each of the rods 41 so that, by rocking the rodsthe angle or pitch end of this arm is pivotally secured by a screw- 45to the ring 35, this screw being inserted through a suitable aperture inthe arm and threaded into the ring. By moving the adjusting shaft 27 soas to move head 34 and ring 35 forward or away from the fan hub, therods 41 will be simultaneously and similarly rocked about their pivotalaxes so as to adjust the pitch of the fan blades 43. By thus adjustingthe pitch of the blades, I am enabled to regulate with great accuracythe amount of air which is drawn through the radiator B thus permittingvery accurate control of the cooling of the radiator. This adjustablefan may be used inconnection with any suitable instrument connected tothe radiator for indicatingthe temperature of the same. If it is seenthat, at any time, the radiator is above the desired temperature, thefan blades 43 may be quickly and easily adjusted so as to increase theirpitch, thus increasing the amount of air which is drawn through theradiator and reducing it to the desired temperature. .For thispurpose,the graduated adjusting plate 22 is of material assistance, as it can bequickly ascertained by experience just exactly which point 23 the handle21 should be placed on under ordinary conditions so as to maintain theradiator at.

proper temperature for a particular auto-- mobile.

The operation of this fan will be more clearly understood from Figs. 1and 2 of the drawings. If it is found desirable to increase the amountof air which is drawn through the radiator so as to lower thetemperature of the same, the handle 21 will be moved over the adjustingplate 22 toward the right hand end thereof, as considered in Fig. 1 ofthe drawings. When the handle 21 is thus operated, the rod 9 will bemoved inward or rearward of the machine, thus swinging the fork 37 oflever 36 forward and forcing the adjusting ring 35 away from the fan hub28. When this takes place, fan blade supporting rods 41 will be rockedabout their pivotal axes so as to swing the fan blades in thedirectionindicated by the arrow in Fig. 2 of the drawings, thus materallyincreasing the pitch of the blades and consequently the amount of airwhich is drawn through the radiator by the fan. When it is desired todecrease the flow of air through the radiator the handle 21 will bemoved in the opposite direction thus reversing the operation.

It will be evident that there may be slight changes made-in theconstruction and ar rangement of the different parts of my inventionwithout departing from the field and scope of the same, and I intend toinclude all such variations, as fall within the scope of the appendedclaim, in this application in which a preferred form only of myinvention is disclosed.

What I claim is In radiator fans, the combination of a fixed bearingsleeve, a fan hub rotatably mounted thereon, radiating fan bladesupporting rods pivotally mounted in said hub so as to be rockable abouttheir pivotal axes, each of said rods being provided with an &

angularly disposed adjusting arm, a shaft slidable through said sleeveand projecting forward 01": the fan hub, said shaft being provided onits outer end with an adjusting head, an adjusting ring carried by saidhead and mounted thereon for independent rotary movement, the outer endsof said adjusting arms being pivotally, secured to the adjusting ring,and means for adjusting said shaft through said bearing sleeve.

In testimony whereof I afiix my signature in presence of two witnesses.

CARL'E. W. SPEISER. Witnesses:

ORA DIMMITT, ALBERT KING.

